Brake-shoe.



PATENTED MAY 26, 1908. P. w. SAR

BRAKE s AAAAAAAAA 0N mum DBO 19, 1907.

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FITZ w. SARGENT, or MAHWAH, new messy, AssIeNoaro EDWARD n. FALLOWS,ORNEW roan, Y.

BRAKE-SHOE To all whom it may concern:

. Be it known that I, Frrz W. SARQENT, a

citizen'of the United States, and a resident kind or type thereofcommonl known and referred to as steel back brake s oe' s, and to a shoedesigned more especially for use upon engine driving wheels, the objectof the invention being to rovide a superior strengthening back'for t eshoe by adding rigidity not only to the body thereof, but also to theflange of the shoe which fits over and con: tacts with the flange of thewheel. v

A further object' of the invention is to provide a steel back for adriver shoe so formed 'that the end thrust of the brake head to whichthe shoe is attached,will be directed against integral portions of theback itself,

rather than against the cast metal forming the body of the shoe, wherebythe effectiveness of the shoe will be increased and the dagger offracture thereof'greatly lessened.

ith these'and other ends in view, the invention consists in certainnovel features of construction as will be hereinafter fully describedand pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of adriver shoeconstructed in' accordance with my invention. Fig. 2 is a longitudinalsectional view thereof taken on the line 33 of Fig. 1. Fig. 3 is a viewin perspective of the steel back detached from the shoe. Fig. 4 is asectional View taken on the line 44 of Fig. 1.

Referring to the drawin s, A represents the body of the shoe prefera lymade of cast iron, or the same may be composite in character, that is,made of relatively hard and soft metal, or soft filling, and either withor without inserts, as desired. As in the case of shoes designed for useupon the driving wheels of locom tives, the portion A of the body of theslide contacts with that por tion of the tread of the wheel which is theleast worn by contacting with the rail, a roove or channel A beingformed in the ody of the shoe to avoid any frictional contact with thatportion of the tread ol' the Specification of Letters lPatent.

Patented May 26, 1908.

Application and. December 19, 1201. Serial 1%. 401,144.

wheel worn by the rail, said body being also formedwith a flange Aadapted to fit over and contact with the flange of the-Wheel.

At or adjacent to the bgirk of the shoe is located the steel back B,preferably formed of a single piece of metal and provided with theopenings 0 for the, purpose of allowing the castinetal of-thebddy 0through the same and securely anchor the back to the said bodyythe'edges of said openings, as clearly illustrated in Figs. 2 and 4, beingbeveled to assist in looking the parts together. This back B is curvedin. the direction of its length to conform to the curvature of the bodyA, and atone side D thereof is also laterally curved to conform to thecurvature of the flange A over which the ortion D fits, said curvedflange Dof the ack being also provided with the openings d to allow thecast metal of the flange of the shoe to flow through the same and assistin anchoring the back to the body of the shoe.

n addition to the openings 0 the shoe to flow formed in the plate C, andthe openings formed in the curved flange l), the bacliis also providedat one edge with the recess 6 and at its ends with the recessesf intowhich the cast metal of the bodyof the shoe flows to'assist in anchoringthe back thereto.

In order that the steel back may receive the end thrust of the brakehead (not shown), extreme ends E of the back. are upwardly turned, asclearly illustrated in Figs. 2 and 3, these upturned ends beingreinforced by the cast metal of the body,thereby materiallystrengthening the completed shoe and largely overcomin all danger offracture to the cast metal which frequently occurs where the end thrustof the head is directed against the brittle 'cast iron ends of the body.By thus forming a steel back comprising a p ate C itself.

.For the purpose of attaching the shoe to the brake head, a holeoropening F is formed through thebody of the shoe, and through the back B,near one end thereof, and through which passes a bolt ordinarily usedl'or the purpose, the opposite end of the shoe.

- ing a plate curved in its length and formed being thereo beingsecurelyanchorednin the body rovided with a hoek G, the ends 9 o fthe'shoe.

. Having fully described my invention, what. I claim as new and desiretosecure by Letters I Patent, isz-+ I 1. A steel back for a brakeshee,compris at one side thereof with a (Served flange, the ends of saidplatebeing n wardlyturnecl to receive the end. thrust .0 the brake head,substantially as'described.

2. A brake shoe conslstmg of: a and a a platellocated at i. or adjacentto the. back thereof, said plate being perforated and having itsends't'nrned upwardly" to receive the end thrust of the brake head,substantially as described.

3. A brake shoe pi'ovided "with a steelbajck located at or adjacent tothe back of the shoe, said steel. back comprising a perforated plateformed with an integral curved flange, the

ends of said plate being turnedInpwardlyf to I receive the end thrust ofthe brake head, substantially'as described.

. :4. A brake shoe comprising a body and a steel back located at 01'.adjacent to the back of the shoe, said steelback being formed with aperforated plate and with an integral e1"- forated curved flange, theends of said. p ate brake head, substantially as described.

'5. A brake'shoe' comprising a body and a steel back located at oradjacent to the back of the shoe, said steelbaek bein formed of aperforated plate and an in'tegra curved perorated flange, the ends ofsaid late being upwardly turned and i einforced hy the cast metal of thebodyysubstantially as described.

De'cQA. D. 1907. I I FITZ' W. SARGENT I. IWitnesses: i a

R. 'QL RK.

Signedatllllahwah in the county ofBergen. and Statebf'New'Jensey, this14th day of being turned" to receive the "end thrust of the I

